> Hello all,> > I bought two x61s for testing purposes. One of them is running> windows XP and the other one is running clean ubuntu 8.04 with kernel> 2.6.24-19. The problem is that on windows that battery lasts around> 3h30min and with linux 1h30min.> > 2 hours is a huge difference. Here's the scenario:> > . x61s with windows xp> wifi on but not connected to any network, bluetooth on,> display is in the less brighten state.> > . x61s with ubuntu 8.04> all radios off (modules removed and hw switch off),

Which wireless is this? Same for graphics

> > Anyways, do we reach D2/D3 states anywhere ? I mean without> context save/restore we can't reach D3 and almost no D2 as well.

these don't give you all that much nowadays> > Any comments ?>

There's a few things you can do to help stuff along; make sure you'reusing AHCI.